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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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RT9262APS Fiches technique(PDF) 1 Page - Richtek Technology Corporation |
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RT9262APS Fiches technique(HTML) 1 Page - Richtek Technology Corporation |
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1 / 10 page  RT9262/A Preliminary 1 DS9262/A-11 March 2007 www.richtek.com Features 1.0V Low Start-up Input Voltage High Supply Capability to Deliver 3.3V 100mA with 1V Input Voltage 17 μμμμμA Quiescent (Switch-off) Supply Current 90% Efficiency 550kHz Fixed Switching Rate Providing Flexibility for Using Internal and External Power Switches Built-in 300mA LDO, also for the Zero-Output- Current Shutdown Mode (RT9262) Boost DC-DC Integrating LDO for Up-Down Regulation (RT9262) Built-in 0.86V Voltage Detector (RT9262A) 8-Pin SOP Package RoHS Compliant and 100% Lead (Pb)-Free Pin Configurations High Efficiency, Low Supply Current, Step-up DC/DC Converter Ordering Information General Description The RT9262/A is a compact, high efficient, step-up DC/DC converter with an adaptive current mode PWM control loop, providing a stable and high efficient operation over a wide range of load currents. It operates in both continuous and discontinuous current modes in stable waveforms without external compensation. The low start-up input voltage below 1V makes RT9262/A suitable for 1 to 4 battery cell applications providing up to 400mA output current. The 550kHz high switching rate minimized the size of external components. Besides, the 17 μA low quiescent current together with high efficiency maintains long battery lifetime. The 1.8V to 5V output voltage is set with 2 external resistors. Both internal 2A switch and driver for driving external power devices (NMOS or NPN) are provided. A 300mA LDO is included in RT9262 to provide a secondary low noise output as well as an output current stop in the shutdown mode. Similarly, a 1.8V to 5V LDO output voltage can be set with 2 external resistors. For RT9262A, a low battery detector with 0.86V detection voltage is included. RT9262/A are provided in SOP-8 packages. (TOP VIEW) SOP-8 RT9262CS RT9262ACS GND EXT LFB LDO O FB VDD LX EN 2 3 4 5 6 7 8 GND EXT LBO LBI FB VDD LX EN 2 3 4 5 6 7 8 Note : RichTek Pb-free and Green products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 100%matte tin (Sn) plating. Applications PDA Portable Instrument Wireless Equipment DSC LCD Back Bias Circuit RF-Tags RT9262/A Package Type S : SOP-8 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) Include Low Battery Detector Include LDO |
Numéro de pièce similaire - RT9262APS |
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Description similaire - RT9262APS |
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